0x2D means SD card issue. This error is shown when the controller reboots and couldn’t detect the SD card, or detect an error in the SD card.
Look, I think some of the issues you are seeing may be inter-related. I’ve already mentioned in another thread that perhaps try to reduce the number of zones. In fact, why not perform a factory reset, and keep it in that state (do not import configurations) and monitor it for a while. If the symptoms are gone, that gives us some knowledge about what could have gone wrong (as I said, possibly a data buffer corruption issue due to large data transfer). If you don’t test it in the factory reset state, that won’t help isolate the problem and the result is a bunch of problems stacking together and we don’t know the root cause.